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U2414H, DDM is not supported in DP1.2?
Hi,
I am observing same or very similar issue on my U2414H as described by many on this forum. In my case the system freezes randomly (mouse is not responsive for a second or two) then I get a notification from DDM that no supported monitors are connected. The system works normally afterwards, but only prior to reboot - the monitor enters power save mode. Reconnecting of power source is a working solution (with all its crudeness).
Monitor is connected via DP1.2 to GTX970.
During the troubleshooting I've read on some forum (not Dell's official) that Dell Display Manager is not compatible with Displayport 1.2. Well, I've removed the DDM and no issues with my monitor until now.
- Can it be that DDM might be the cause of this phenomenon while in DP1.2?
- If yes, will it ever be fixed? I actually like the DDM functionality...
Lukasz
Duke1UP
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January 21st, 2015 12:00
Three days without a single incident. Either it's indeed a DDM / DP1.2 compatibility issue or something is nok with my HW.
DELL-Chris M
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54.3K Posts
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January 22nd, 2015 05:00
For my notes, please check the rear label and tell me the monitor revision number and the 20 digit serial number.
Duke1UP
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January 22nd, 2015 12:00
It was bought from a re-seller "morele.net" - one of the biggest internet shops in Poland...
What other surprises may I expect from this revision? (except of no DDM support)
Duke1UP
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January 22nd, 2015 12:00
Hi Chris,
Rev: A01
S/N: CN-09TG46-74261-497-70CL
DELL-Chris M
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January 22nd, 2015 12:00
Was this purchased directly from Dell? If yes, New or Used Outlet? If not from Dell, from who?
DELL-Chris M
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Community Manager
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54.3K Posts
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January 24th, 2015 05:00
Possible power save /wake issues using DP. The newest revision is A03. Because you did NOT buy the monitor directly from Dell, this will be difficult.
* Get the monitor exchanged. Go back to the top of this Monitor Forum
* Open, "My 24" or smaller monitor does not have a Service Tag?"
swamped1
234 Posts
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January 24th, 2015 05:00
I'm afraid this is a broken DDC/CI issue with a lot of early DP1.2 implementations. I have a U2415 and a U2414: the newer U2415 works with DDM if DP1.2 is enabled or DP1.2 is disabled; the older U2414 is only recognized by DDM if DP1.2 is disabled.
Duke1UP
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January 24th, 2015 12:00
Thank you for your help Chris. After I've learnt about different revisions I started to dig more, and found out there is indeed an issue with DP 1.2 in A01. Now I have a stable setup with DP 1.1 but still I prefer to have a fully functional HW.
Checked the thread you pointed out, your instructions there are clear. Please note that Dell's internal links you've mentioned are not accessible.
Duke1UP
9 Posts
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January 24th, 2015 12:00
Swamped207, would you care to share the rev# of your U2414h with me?
DELL-Chris M
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January 25th, 2015 09:00
Please note that Dell's internal links you've mentioned are not accessible.
* Correct. You cannot access them. They are for Dell internal employees only. I gave them to you so that you could give them to the Dell technicians so that THEY could access them.
swamped1
234 Posts
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January 25th, 2015 14:00
Mine is an A01.